Video: Heroic officer saves man with CPR in gas station

>>>now good news from south of atlanta where a quick-acting
police officer
helped a desperate mother save her son. natalie is here with that story. hey, n at.

>>that's right, savannah. having a hard time breathing when that officer helped revive him. the heroic actions captured on a
surveillance camera
. this was the moment when officer
christopher simmons
performed life-saving
cpr
on an unresponsive keith
haynes
, who, moments earlier, collapsed in his mother's car as she rushed him to the hospital. he complained to her that he couldn't breathe.

>>as i was driving, he seized. he got stiff, seized and went limp. he stopped breathing on me.

>> reporter: a frantic linda
tyler
pulled into this bp
gas station
and ran directly to the
police officer
off camera to the left. officer
christopher simmons
stopped for a cup of coffee when
tyler
spotted him. the officer followed
tyler
and her brother outside.

>>he was pretty upset. it was about her son, having some kind of medical problems. she's screaming that he wasn't breathing.

>> reporter: it was raining outside. the three carried
haynes
inside the store and the officer started
cpr
.

>>i was just walking up and down saying jesus, jesus, help him. i kept asking, is he breathing yet? is he breathing?

>>it took several minutes of
cpr
before officer simmons began to see
signs of life
.

>>after two or three minutes, i was able to get a good pulse on him.

>>soon, paramedics arrived and prepared to take
haynes
to the hospital. thanks to his mother's quick thinking and the officer's quick action, avenues live and breathing again.

>>it's an incredible feeling that i can't describe, to be able to help someone, to save a
human life
.

>>i thought i had lost my son. i really did. thank god for that officer. i thank him so much, from the bottom of my heart, for helping me. i really do. i really do.

>>and linda
tyler
says her son is now out of intensive care and doing better. his doctors believe he was suffering from an
asthma attack
and officer simmons will be awarded with his department's life-saving award. thank goodness.

That’s when she spotted a police officer inside a gas station's store. She pulled into the station and ran into the store, begging for help.

“She was pretty upset about her son, her son's medical problems. She was screaming that he wasn't breathing,” said Christopher Simmons, a police officer who had stopped at the station to get a cup of coffee.

Simmons followed Tyler outside in the rain to her car and, with the help of her other son, brought Haynes into the store. He then started performing CPR.